#1: Speed sensor Which wire is which? Author: macj, Location: EssexPosted: Sun Jul 31, 2011 6:47 am ---- On the transmission of a BE4 gearbox from a GTi, anyone know the layout and function of the three wires. I am trying to make a digital processor for stage distance and time to work from one. Last edited by macj on Sun Jul 31, 2011 7:13 am; edited 1 time in total
#2: Re: Speed sensorWhich wire is which? Author: Lee, Location: EnglandPosted: Sun Jul 31, 2011 7:05 am ---- The MM 4.8P or the MM 4MP2 ecu?
#3: Re: Speed sensorWhich wire is which? Author: macj, Location: EssexPosted: Sun Jul 31, 2011 7:12 am ---- Its all on stand alone ECU. I have a bare canvass mate. The rally trip computor needs a pulse signal. It can input 5volts to the sensor and has a wire from the pulse terminal and a -ve wire. The problem is I can either use an old ABS sensor on one wheel to feed it a pulse or use the gearbox sensor. I just dont want to fry anything
#4: Re: Speed sensor Which wire is which? Author: Lee, Location: EnglandPosted: Sun Jul 31, 2011 7:23 am ---- Pin 1 - CM32M - voltage - engine fuse box
Pin 3 - 6739 - vehicle speed info
Pin 2 - MM01A - earth
#5: Re: Speed sensor Which wire is which? Author: macj, Location: EssexPosted: Sun Jul 31, 2011 7:26 am ---- nice one mate.... now how do I know which is pin1
I assume pin 3 is middle
#6: Re: Speed sensor Which wire is which? Author: Lee, Location: EnglandPosted: Sun Jul 31, 2011 7:35 am ---- If you look very closely there will be numbers
nah pin 3 is at the end, i just listed them in the order that I read them off the diagram
normally Pin 1 is to the right
#7: Re: Speed sensor Which wire is which? Author: macj, Location: EssexPosted: Sun Jul 31, 2011 7:40 am ---- looks like I need to borrow some glasses then.... cheers for the help bud. Hope the hangover is better
#8: Re: Speed sensor Which wire is which? Author: Lee, Location: EnglandPosted: Sun Jul 31, 2011 7:42 am ---- I'll have a look to see if I have one in the shed to see if I can see them.
Dunno if I left it on the engine when I sold it or not
#9: Re: Speed sensor Which wire is which? Author: macj, Location: EssexPosted: Sun Jul 31, 2011 7:46 am ---- I spent about an hour trying to find a 3 pin plug for it.... I junked the whole loom when I built the car so will be off to the scrappy tomorrow
#10: Re: Speed sensor Which wire is which? Author: Lee, Location: EnglandPosted: Sun Jul 31, 2011 7:47 am ---- Does it look like this?
#11: Re: Speed sensor Which wire is which? Author: macj, Location: EssexPosted: Sun Jul 31, 2011 7:53 am ---- nope.... thats the cable drive unit I think, looks like this
#12: Re: Speed sensor Which wire is which? Author: macj, Location: EssexPosted: Sun Jul 31, 2011 8:04 am ---- And now I can see the numbers
#13: Re: Speed sensor Which wire is which? Author: Edward, Location: In the garagePosted: Sun Jul 31, 2011 8:14 am ---- and a slightly cleaner version.
#14: Re: Speed sensor Which wire is which? Author: Seabook, Posted: Sun Jul 31, 2011 8:19 am ----
macj wrote:
And now I can see the numbers
#15: Re: Speed sensor Which wire is which? Author: macj, Location: EssexPosted: Sun Jul 31, 2011 9:56 am ---- Yes Ed..... its a bit grubby round there
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